Hey, DH!
Step one is to develop consistency in your form. For that, I would recommend the book "Shooting the Stickbow" by Anthony Camera. The amount of information can be a bit overwhelming (it's basically a textbook on competitive target shooting), but Camera can help you get your form squared away. I'm not a huge fan of G. Fred Asbell's books, but his "instinctive shooting" series has a lot of good, basic info on how to stand, using the back muscles instead of the arms, and so on, and his stuff is more geared toward bow hunting. Also check out the "Masters of the Barebow" DVD series for some good basics on how to practice and such.
Do a lot of blind-bale shooting (shooting up close, not worrying about hitting a spot; just thinking about your form) to get your form completely under control.
Once you've got the basics of form nailed, I highly recommend the book "Instinctive Archery Insights" by R.J. Kidwell. I don't much care for his style of writing--he sort of liked to string the reader along for a few pages before he got to the point--but for me, he really demystifies and breaks down the mental and physical processes that are (or should be) happening for a good, consistent, instinctive shot. Work your way through that book and practice, practice, practice.
Clay Hayes' videos (look him up on youtube) have some great info on most of the above. He is more of a gap shooter.
But don't worry too much about "am I aiming or shooting instinctive?" I think most good shooters find some combination of the two that works for them. Even some of the guys who say "I never see the arrow" have proven in experiments that they actually do see it; it's just subconscious.
As you run into specific problems, post them on here and you'll get more help than you know what to do with!
Thomas